The Goldbreak 27 occurrence is located near the western shore of Long Lake, approximately 19 kilometres northeast of the townsite of Cassiar and 107 kilometres north of the community of Dease Lake.

The area is underlain by Silurian to Lower Devonian rocks of the Ramhorn Group comprising quartzite, dolomitic quartzite and breccia, which tend to strike southeast and dip to the southwest. To the south of Long Lake, the Ramhorn Group is overlain by Middle to Upper Devonian McDame Group rocks comprising dolomite and limestone.

Irregular, discontinuous quartz veins, up to 25 centimetres wide, crosscut the quartzite and host chalcopyrite and pyrite with malachite, limonite and rare auzurite on fractured surfaces. Three old trenches were excavated in the mineralized quartz veins.

In 1986, grab samples from these trenches assayed 0.311 and 0.292 per cent copper, and 6.17 grams per tonne silver. A channel sample taken across 2.5 metres assayed 0.335 per cent copper. A quartz-carbonate pod within the vein, 3.0 by 3.0 metres, assayed 0.05 per cent copper and 0.023 per cent zinc. The overall analysis of 12 samples of the veined quartzite averaged trace gold, 5.8 grams per tonne silver, 0.335 per cent copper, 0.024 per cent lead and 0.023 per cent zinc (Assessment Report 15667).

Work History

In 1986, geological mapping and geochemical sampling was completed on behalf of Ore-Ram Mining Company Limited.

During 2008 through 2010, Hawthorne Gold Corp., later China Minerals Mining Corp., completed regional programs of geological mapping, geochemical (rock and soil) sampling and 11,657 line-kilometres of airborne magnetic, radiometric and electromagnetic surveys on the area as the Cassiar Gold property.

In 2019, Margaux Resources completed a program of prospecting, geological mapping and rock sampling on the area immediately east as the Cassiar Gold property. In 2020, Cassiar Gold Corp. completed a program of regional photogeological interpretation, prospecting and rock sampling on the Cassiar Gold property.